update handler options

pkg/common/util/auth/auth.go

@@ -0,0 +1,24 @@
+package auth
+
+import (
+	"net/url"
+
+	"github.com/go-gost/gost/pkg/auth"
+)
+
+func AuthFromUsers(users ...*url.Userinfo) auth.Authenticator {
+	kvs := make(map[string]string)
+	for _, v := range users {
+		if v == nil || v.Username() == "" {
+			continue
+		}
+		kvs[v.Username()], _ = v.Password()
+	}
+
+	var authenticator auth.Authenticator
+	if len(kvs) > 0 {
+		authenticator = auth.NewMapAuthenticator(kvs)
+	}
+
+	return authenticator
+}